Bài tập SBVL1 (Tiếng Anh) - Phần STRAIN (Bài 1 đến bài 5)

• Đăng bởi: lethithanhbinh
• Sinh viên
• 18/05/2018

Strain 2.1

The rigid beam is supported by a pin at A and wires BD and CE. If the load P on the beam causes the end C to be displaced 10 mm downward, determine the normal strain developed in wires CE and BD. (P2.1)

Strain 2.2

The force applied at the handle of the rigid lever causes the lever to rotate clockwise about the pin B through an angle of 2°. determine the average normal strain developed in each wire. The wires are unstretched when the lever is in the horizontal position. (P2.2)

Strain 2.3

The two wires are connected together at A. If the force P causes point A to be displaced horizontally 2 mm, determine the normal strain developed in each wire. (P2.3)

Strain 2.4

The rubber band of unstretched length 2r is forced down the frustum of the cone. Determine the average normal strain in the band as a function of z.(P2.4)

Strain 2.5

The pin-connected rigid rods AB and BC are inclined at when they are unloaded. When the force P is applied becomes 30.2°. Determine the average normal strain developed in wire AC. (P2.5)